Publishing a Message to an AWS SNS Topic From an AWS Lambda Function Using Boto3

index.md

Publishing a Message to an AWS SNS Topic From an AWS Lambda Function Using Boto3

import json
import boto3

def lambda_handler(event, context):
    message = {'key': 'value'}

    boto3.client('sns').publish(
        TargetArn='YOUR ARN HERE',
        Message=json.dumps({'default': json.dumps(message)}),
        MessageStructure='json'
    )

Inside a Python AWS Lambda function, you can import boto3, which is the AWS SDK for Python.

You can then create a low-level client representing the SNS service with boto3.client('sns'). With that client, you can call the publish() method to publish a message to an SNS topic that has a given ARN.

References

• boto3.amazonaws.com / SNS -- Boto3 Docs 1.17.7 documentation